Given that such a ploy might just be illegal, Griffiths also has a more legitimate tactic for dealing with the giant All Black wing as he prepares for Saturday's Test.

"You have got to double up on him," said the former Welsh rugby league coach.

"You saw when he played against England that if you leave it to one on one he is always going to be the ace card and always going to come out on top.

"The teams that have handled Lomu well have teamed up on him, as you saw in the France game.

"Somebody has got to act as the speed bump and someone else has got to be the road-block.

"It's as simple as that. One person slows him down and the next man finishes him off."

However, Griffiths knows Wales must watch out for Lomu being used as a decoy runner by the All Blacks, as the Kiwis go in search of their first win of their European tour.

"They use him very cleverly," he said.

"You think he is going to bash it up and then all of a sudden the ball goes behind him or in front of him.

"We have been working on that and hopefully we won't get sucked in by decoy runners and the threat of the big man."

Griffiths says every member of the Welsh team will need to be on their defensive mettle at the Millennium Stadium this weekend.

"The first thing is you've got to win your personal battles," added Griffiths.

"That is where it all starts. "When you line up against these race horses you've just got to put them down.

"We had a similar scenario against Australia last autumn and we did very well against them.

"Our defence is coming on leaps and bounds.

"The boys are making the most of the collisions to slow the opposition down and get plenty of turnovers. "Everyone is working for each other. We share in the workload and we are a team together in defence.

"So we are seeing a great deal of progress.

"But you are always measured against the best and we've certainly got a big test at the weekend. "What we need to do is control the ball.

"You saw in the Fiji game that the two tries they scored were from our ball - from a quick tap penalty and from a turnover

"New Zealand have got this great attitude of counter-attack.

"When it does happen during the course of the game, it's going to be `mayday, mayday boys and scramble'."